Key-duplicating machine.



` A.' .TEN SEN; KEY, U12-momma MACHINE. '[APPLIOTIOK rILBDPIm-Is1pA1913.

13087.94@ l Pataxlted Feb. 24%,' 1914.

V. JENSEN, GE BRG@ 'liYN, NEVJ' YORK. ASSIGNUR 'O HIMSELF AND {VAN E. fr.. KNUSBER'G, NEW YORK. N. Y.

Application Med March 'lflf ut" #win/n if muy nn/:Urn:

lw it, tnonn that t, .1in-Lawinen lli. hammam -i tiiyen ot' the ADanish .'ltonarehy. and a rt-itlent tf1' Vlnoolilvn, lilo u county. .New ltork. linwini'enterl tryi n new aint Init-Vul luq'n'orennnt'zi in lieylnpiienting Mae ehinee, ot nhivh the 'tollo'wiingj is a pendi-v titiloti.

This, invention relates to liet duplicating; hierhin-:1e and the ohiet-t of tinl invention in to provide n simple and easily operated niaehine 'For duplitating keys tor nfl-:e with pin tninhler hielos or other types of .loelts open ated with ttat keys. or new elntraeterized hy heingg pt 'tn'iietl with one or more ente or notehenr in certain (-onihinations and which .are all. welt known.

thher ohjeetrs of the invent ion will ttppear a, this npeeitieation proeeetle while, roerenee is; had to the aeeonipauyinnj drawings illuslrzttinir the invitation :intl in n'hithw- Yifitfn if t it: a plan rieti' ot a key ytluplitatnuit-hint entllotiyingr "my inreniitm. Fig. :an end. elevation lookingin direction rrow ".2 l'fg. 1. lfigr. Z1 is :1n end elevation in the. direetion ot tl e arron fl in 19in'. /f is a fronty View looking: in the ion ot arrow Il; in Fig. 1, und lfig. is a detail view.

'the retereneo in'uneral i denotes a snitahle har-3e l'nfovitled with the two Standards t5 ond. 7.

5% is o n'lain driving: shaflt jonrnaled in the Standards and centrally on said shaft there in eeenred by any Suitable mean, a Cutter or rotary 1ile S). The shaft tit carries ar pinion 10 with whirl), nnashefs a gear 11 on a l hat`t l2 to whit-h is seenretl the operatingI handle 13 by n'iennn o whieh the Putter 'is driven.

.1L/'1- ielv n hey carrying Slide or sumiorting menus. .It comprises a Contrat internally threaded been 15 and a forward and a rear arm 111 and 17 each of which provided with n hey receiving' socket or cutout' 1S 'for the pattern key and the key blank. I

19 are clamping screws to ehnnp the keye` to the slide 14.

E20 is o handle on the slide.

21 is nn endless screw jonrnnled in the standards; 6 and T hut, eeenred against axial movement by any enitahle means. 'The .eer-ew 21 posses through and is in threaded engage ment with the. aforesaid threadof'l bose 1,5., so that when the serew is rotated, the slide 1/1- is moved. transversely dit the machine as will lt/at on ted tteh. 243.11914.

151111. Sern1t1o.75'.7.t4.

he understood. '1f he sei-en' ill rotated #from the :shatt 12 through the infstrumentalities o1 the pinion 22 on sant shaft and the gear J3 Seem-ed to the serew adjacent the Standartls T.

iltleans, however'. are provided :for rotatingT the endless Wrenv independently of the rotfltion ot' the shaft S by a handle 24e tast in the rear To this end I have provided a eintf-h i255 in, whit-h a pin 2G may be engaged or disengaged troni un aperture 27 in the pinion 2? uhieh is loose on the Shaft 12 while the Clutch in fast on Said shnt't. When the pin 2G is disengaged from the pinion, the endless screw may he turned by hand by the handle Q11. When the pin QG engages the aperture 2T the pinion 2i); is elntehed to the shaft und revolves "with it. ln the base of the machine is suitably mounted n gage pin Ql which may be adjusted vertically and locked in position by a nut; 29.

ln operation the slide 14 is moved to the one side. and the pattern key 30 is clamped in the socket '1S above the gage pin and the key blank 31 is clamped in the socket 18 onder the cutter t). The gage pin is adjusted no as to touch the highest point; on the pattern key at. which the bitting's in the key commence. This point is indicated at 212 in Fig. f1. The key blank is clamped in a possiton similar to that of the pattern key hut with its hitting edge upward against the cutter. It will also he noted that the .aides 35 and 3G at'fthe ends of the arms '16 and 1T avt. as stops for the shoulders 37 of the lteye, whereby it is possible to place the lit-.ve in exact similar positions transversely ot the slide 14 at its opposite ends. When the elan-11 is in and the shaft 12 is rotated the slide 14 with the two keys is fed past the cutter and` the lgnge pin. By pressing veldingly on A.the handle 20 the operator 'fortes the key talent; up against, the cutter tit? to ent a noteh o1 exactly the same size,

depth and curvature as the notch in the pnttern key which at the moment is above the gage pin. '[it desirodn weight 40 maybe 'platedon the handle 2t) to tip the slide 14 up against, the cutter 9. It desired, the pinion 22 may he nnclntehcd from the Shaft 12 and the endless lfeed screw operated at any desired Speed hy the operator to feed the keys past the cutter.

thorn the foregoing; it will be apparent that the slide 111 constitutes a key carrying the keys pastiand toward the cutter at a speed directly suited to the bittings or notches to be duplicated.v

' IVhere a key of the character shown in Fig. 5 is to be duplicated, I prefer a cutter 45 of the'form shown in said figure, and it f will be seen that by means of the movement-s of the slide referred to, the operator is able to reproduce a deep cut in the key .by leaving the slide 14 immovable transversely until the desired depth has been reached as controlled by a gage pin of suitable shape. Various changes in the detailed construction as here described and illustrated may be made within the principle and. scope of the invention and I do not limit myself otherwise than as expressed in the appended claims.

I claim:

i. Ina key duplicating machine the combination of a base, standards arising from the same, an endless` screw journaled in said -simultaneously rotating standards, a gage pin adjustably secured in sald base on one side of said endless screw, a cutter supported 1n said standards on the otherside of said endless screw, a slide' mounted on the latter and in threaded engagement therewith, means' for supporting a key and a key opposite ends thereof, means for tipping said slide to force the key'intc contact with the said gage pin and the ke blank into contact with said cutterv an means for the cutter and the endless screw to move said slide transversely of the cutter and the gage pin.

2. In a key duplicating machine the com bination of supporting means for a key and a key blank, a gage pin, means for adjust.- ing the same,. a cutter, means for rotating said cut-ter, mechanism actuated by said rotating means said gage pin and cutter and means for vertically oscillatmg said qsupportin blank into contact with the said blank in said .slide at the means to force the lkey into contact with said gage pin for automatically movin the Vsaid supporting means transversely o the 

